- spectral signal
- Безопасность: спектральная сигнатура, характеристика излучательной способности объекта в различных областях электромагнитного спектра
Универсальный англо-русский словарь. Академик.ру. 2011.
spectral signal
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Spectral efficiency — Spectral efficiency, spectrum efficiency or bandwidth efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific communication system. It is a measure of how efficiently a limited frequency spectrum is… … Wikipedia
Spectral sensitivity — is the relative efficiency of detection, of light or other signal, as a function of the frequency or wavelength of the signal.In visual neuroscience, spectral sensitivity is used to describe the different characteristics of the photopigments in… … Wikipedia
Spectral leakage — is an effect in the frequency analysis of signals where small amounts of signal energy are observed in frequency components that do not exist in the original waveform. The term leakage refers to the fact that it appears as if some energy has… … Wikipedia
SIGNAL (THÉORIE DU) — La théorie du signal est un chapitre de la théorie de la communication . La communication est la transmission de messages d’information. Elle met en relation orientée à travers un canal un système de départ (source ou émetteur de messages) et un… … Encyclopédie Universelle
Spectral modelling synthesis — Spectral Modeling Synthesis or simply SMS is an Acousic modeling approach for speech and other signals.SMS considers sounds as a combination of harmonic content and noise content. Harmonic components are identified based on peaks in the frequency … Wikipedia
Spectral flatness — is a measure used in digital signal processing to characterise an audio spectrum. A high spectral flatness indicates that the spectrum has a similar amount of power in all spectral bands this would sound similar to white noise, and the graph of… … Wikipedia
Spectral density — In statistical signal processing and physics, the spectral density, power spectral density (PSD), or energy spectral density (ESD), is a positive real function of a frequency variable associated with a stationary stochastic process, or a… … Wikipedia
Spectral phase interferometry for direct electric-field reconstruction — In ultrafast optics, spectral phase interferometry for direct electric field reconstruction (SPIDER) is an ultrashort pulse measurement technique.The basicsSPIDER is an interferometric ultrashort pulse measurement technique in the frequency… … Wikipedia
Spectral density estimation — In statistical signal processing, the goal of spectral density estimation is to estimate the spectral density (also known as the power spectrum) of a random signal from a sequence of time samples of the signal. Intuitively speaking, the spectral… … Wikipedia
Spectral splatter — In radio electronics or acoustics, spectral splatter (also called switch noise ) refers to spurious emissions that result from an abrupt change in the transmitted signal, usually when transmission is started or stopped.For example, a device… … Wikipedia
Signal-to-noise ratio — For signal to noise ratio in statistics, see Cohen s d. Signal to noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined… … Wikipedia
